/* ==========================================================================
   LETRAS FLCH - Modern UI layer
   Loaded after legacy CSS to polish the current theme without a template rewrite.
   ========================================================================== */

:root {
    --flch-navy: #143B63;
    --flch-navy-900: #07182E;
    --flch-navy-800: #0D2747;
    --flch-navy-100: #EAF1F8;
    --flch-gold: #A88F1D;
    --flch-gold-700: #7A6600;
    --flch-cyan: #4BAED8;
    --flch-ink: #1F2937;
    --flch-muted: #64748B;
    --flch-border: #E2E8F0;
    --flch-surface: #FFFFFF;
    --flch-surface-soft: #F6F8FB;
    --flch-radius: 8px;
    --flch-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --flch-shadow-md: 0 12px 26px rgba(15, 23, 42, 0.10);
    --flch-shadow-lg: 0 22px 55px rgba(15, 23, 42, 0.16);
    --flch-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
    text-rendering: optimizeLegibility;
}

body {
    background:
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 48%, #FFFFFF 100%);
}

.container-custom {
    width: min(100% - 2rem, 1280px);
    margin-inline: auto;
    padding-inline: 0;
}

.skip-link {
    position: fixed;
    left: 1rem;
    top: 1rem;
    z-index: 100000;
    transform: translateY(-140%);
    border-radius: var(--flch-radius);
    background: var(--flch-gold-700);
    color: #fff;
    padding: 0.75rem 1rem;
    box-shadow: var(--flch-shadow-md);
}

.skip-link:focus {
    transform: translateY(0);
}

.flch-using-keyboard :focus-visible {
    outline: 3px solid rgba(75, 174, 216, 0.75);
    outline-offset: 3px;
}

.main-header {
    transition:
        transform 220ms var(--flch-ease),
        background-color 220ms var(--flch-ease),
        box-shadow 220ms var(--flch-ease);
}

.main-header.flch-header--scrolled {
    box-shadow: 0 16px 36px rgba(5, 16, 32, 0.28);
}

.main-header.flch-header--compact {
    transform: translateY(-8px);
}

.page-header {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(20, 59, 99, 0.10);
    background:
        linear-gradient(135deg, rgba(20, 59, 99, 0.98), rgba(13, 39, 71, 0.96)),
        linear-gradient(90deg, rgba(168, 143, 29, 0.16), rgba(75, 174, 216, 0.10));
    color: #fff;
    padding: clamp(2.5rem, 6vw, 5.25rem) 0;
}

.page-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--flch-gold), var(--flch-cyan), transparent);
}

.page-header .container-custom {
    position: relative;
    z-index: 1;
}

.page-title,
.single-header__title {
    max-width: 980px;
    color: #fff !important;
    font-family: "Libre Baskerville", Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.65rem) !important;
    line-height: 1.08 !important;
    margin: 0.35rem 0 0.85rem;
    letter-spacing: 0;
}

.archive-header__eyebrow,
.single-header__cat-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 0;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.09);
    color: #F5D36F !important;
    padding: 0.42rem 0.78rem;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.archive-header__count,
.archive-header__desc,
.single-header__meta,
.page-header .breadcrumbs {
    color: rgba(255, 255, 255, 0.78);
}

.archive-main,
.single-layout {
    padding-block: clamp(2rem, 5vw, 4.5rem);
}

.archive-layout,
.single-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
}

.flch-card {
    position: relative;
    isolation: isolate;
    display: flex;
    min-height: 100%;
    overflow: hidden;
    border: 1px solid rgba(20, 59, 99, 0.10);
    border-radius: var(--flch-radius);
    background: var(--flch-surface);
    box-shadow: var(--flch-shadow-sm);
    transition:
        transform 240ms var(--flch-ease),
        box-shadow 240ms var(--flch-ease),
        border-color 240ms var(--flch-ease);
}

.flch-card::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--flch-gold), var(--flch-cyan));
    opacity: 0;
    transition: opacity 220ms var(--flch-ease);
}

.flch-card:hover,
.flch-card:focus-within {
    transform: translateY(-4px);
    border-color: rgba(168, 143, 29, 0.38);
    box-shadow: var(--flch-shadow-md);
}

.flch-card:hover::after,
.flch-card:focus-within::after {
    opacity: 1;
}

.flch-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    height: auto !important;
    overflow: hidden;
    background: var(--flch-navy-100);
}

.flch-card__img-link,
.flch-card__img {
    display: block;
    width: 100%;
    height: 100%;
}

.flch-card__img {
    object-fit: cover;
    transform: scale(1.001);
    transition: transform 520ms var(--flch-ease), filter 520ms var(--flch-ease);
}

.flch-card:hover .flch-card__img {
    transform: scale(1.045);
    filter: saturate(1.04) contrast(1.02);
}

.flch-card__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.75rem;
    padding: clamp(1rem, 2vw, 1.25rem);
}

.flch-card__date {
    display: inline-flex;
    align-items: center;
    gap: 0.42rem;
    color: var(--flch-muted);
    font-size: 0.82rem;
    margin: 0;
}

.flch-card__title {
    margin: 0;
    font-size: clamp(1.05rem, 1.4vw, 1.22rem);
    line-height: 1.32;
}

.flch-card__title a {
    color: var(--flch-navy);
}

.flch-card__title a:hover {
    color: var(--flch-gold-700);
}

.flch-card__excerpt {
    color: #475569;
    font-size: 0.94rem;
    line-height: 1.62;
    margin: 0;
}

.flch-card .flch-btn {
    margin-top: auto;
    align-self: flex-start;
}

.flch-badge--category {
    position: absolute;
    left: 0.85rem;
    top: 0.85rem;
    z-index: 2;
    display: inline-flex;
    min-height: 0;
    max-width: calc(100% - 1.7rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border-radius: 999px;
    background: rgba(7, 24, 46, 0.84);
    color: #fff !important;
    padding: 0.36rem 0.68rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    backdrop-filter: blur(10px);
}

.archive-featured {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    overflow: hidden;
    border: 1px solid rgba(20, 59, 99, 0.10);
    border-radius: var(--flch-radius);
    background: var(--flch-surface);
    box-shadow: var(--flch-shadow-md);
}

.archive-featured__image {
    position: relative;
    min-height: 360px;
    overflow: hidden;
}

.archive-featured__img {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
}

.archive-featured__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(5, 16, 32, 0.35));
}

.archive-featured__label,
.archive-featured__cat {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border-radius: 999px;
    padding: 0.4rem 0.7rem;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.archive-featured__label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    background: rgba(255, 255, 255, 0.92);
    color: var(--flch-navy);
}

.archive-featured__cat {
    width: fit-content;
    min-height: 0;
    background: var(--flch-navy-100);
    color: var(--flch-navy) !important;
}

.archive-featured__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(1.25rem, 4vw, 2.5rem);
}

.archive-featured__title {
    margin: 0.75rem 0;
    font-size: clamp(1.65rem, 3vw, 2.45rem);
    line-height: 1.14;
}

.archive-featured__title a {
    color: var(--flch-navy);
}

.archive-featured__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    color: var(--flch-muted);
    font-size: 0.9rem;
}

.archive-featured__excerpt {
    color: #475569;
    line-height: 1.72;
    margin: 1rem 0 1.25rem;
}

.archive-featured__link,
.flch-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 42px;
    border-radius: 7px;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.archive-featured__link,
.flch-btn--outline {
    color: var(--flch-navy) !important;
}

.archive-featured__link:hover,
.flch-btn--outline:hover {
    color: var(--flch-gold-700) !important;
}

.sidebar,
.archive-sidebar,
.single-sidebar {
    position: sticky;
    top: 96px;
}

.widget {
    border: 1px solid rgba(20, 59, 99, 0.10);
    border-radius: var(--flch-radius);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--flch-shadow-sm);
}

.widget-title {
    color: var(--flch-navy);
    font-size: 1rem;
    letter-spacing: 0;
}

.single-article {
    border: 1px solid rgba(20, 59, 99, 0.10);
    border-radius: var(--flch-radius);
    background: var(--flch-surface);
    box-shadow: var(--flch-shadow-sm);
    padding: clamp(1.1rem, 3vw, 2.5rem);
}

.single-featured-image {
    overflow: hidden;
    border-radius: var(--flch-radius);
    margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
    background: var(--flch-navy-100);
}

.single-featured-image__img {
    width: 100%;
    aspect-ratio: 16 / 8.5;
    object-fit: cover;
}

.single-content {
    color: #334155;
    font-size: clamp(1rem, 1.2vw, 1.08rem);
    line-height: 1.8;
}

.single-content h2,
.single-content h3 {
    color: var(--flch-navy);
    margin-top: 2rem;
}

.single-content p,
.single-content ul,
.single-content ol {
    max-width: 72ch;
}

.single-share,
.single-tags,
.single-post-nav {
    border-top: 1px solid var(--flch-border);
    margin-top: 2rem;
    padding-top: 1.25rem;
}

.single-share-btn,
.flch-footer__social-link,
.header-btn {
    border-radius: 7px;
}

.pagination ul,
.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
}

.pagination .page-numbers {
    border-radius: 7px;
}

[data-flch-animate].flch-animate-ready {
    opacity: 1;
    transform: none;
}

@media (max-width: 1023px) {
    .archive-layout,
    .single-layout {
        grid-template-columns: 1fr;
    }

    .sidebar,
    .archive-sidebar,
    .single-sidebar {
        position: static;
    }

    .grid-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .archive-featured {
        grid-template-columns: 1fr;
    }

    .archive-featured__image {
        min-height: 280px;
    }
}

@media (max-width: 640px) {
    .container-custom {
        width: min(100% - 1.5rem, 1280px);
    }

    .page-header {
        padding: 2.25rem 0 2rem;
    }

    .grid-cards {
        grid-template-columns: 1fr;
    }

    .archive-featured__image {
        min-height: 220px;
    }

    .single-featured-image__img {
        aspect-ratio: 4 / 3;
    }
}

@media (prefers-reduced-motion: reduce) {
    .main-header,
    .flch-card,
    .flch-card__img {
        transition: none !important;
    }
}